Article
  • Changes in the Interfacial Properties between Poly(butylene terephthalate) and Multi-walled Carbon Nanotubes Bonded with Various Functional Groups
  • So Hyun Hong and Chang Keun Kim

  • School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Heuksuk-dong, Dongjak-Gu, Seoul, 06974, Korea

  • 다중벽 탄소나노튜브 결합 관능기에 따른 폴리(부틸렌 테레프탈레이트)와의 계면 특성 변화
  • 홍소현 · 김창근

  • 중앙대학교 화학신소재공학부

Abstract

The composites of poly(butylene terephthalate) (PBT) and multi-walled carbon nanotubes (MWCNTs) functionalized with carboxylic acid, acyl chloride and ethyl amine were prepared and their properties were characterized. The interfacial adhesion energies between PBT and functionalized MWCNTs were estimated with a drop-on-fiber method combined with a generalized droplet shape analysis method. The interfacial adhesion energies between PBT and functionalized MWCNTs were higher than that between PBT and pristine MWCNT. Among the functionalized MWCNTs, MWCNT containing ethyl amine exhibited the highest interfacial adhesion energy with PBT. When dispersion of MWCNTs in the PBT matrix was examined, composites having high interfacial adhesion energy exhibited better dispersion. PBT composite containing MWCNT functionalized with ethyl amine also exhibited greater adhesion at the interface and reinforcement than that containing pristine MWCNT.


폴리(부틸렌 테레프탈레이트)(PBT)와 카복실산, 아실 클로라이드, 에칠 아민 등의 관능기가 결합된 다중벽 탄소나노튜브(MWCNT)의 복합체를 제조하고 이들의 특성을 분석하였다. PBT와 관능기가 결합된 MWCNT간의 계면 접착 에너지를 일반 드랍 형태 분석법과 결합된 drop-on-fiber법을 사용하여 산출하였다. PBT와 화학 처리 전의 MWCNT간의 계면 접착 에너지보다 PBT와 관능기가 결합된 MWCNT들이 높은 계면 접착 에너지를 나타내었다. 특히 PBT와 관능기가 결합된 MWCNT간의 계면 접착 에너지들 중에서는 에칠 아민을 포함한 MWCNT가 PBT와 가장 높은 계면 접착 에너지를 나타내었다. 높은 계면 접착 에너지를 갖는 복합체가 PBT 매트릭스 내에서 보다 향상된 MWCNT 분산성을 나타내었다. 또 에칠 아민 관능기가 포함된 MWCNT와 PBT의 복합체가 화학처리 전 MWCNT를 갖는 복합체에 비해 향상된 기계적 강도와 계면 접착성을 나타내었다.


Keywords: poly(butylene terephthalate), multi-walled carbon nanotubes, functionalization, composite, interfacial adhesion

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2018; 42(1): 87-92

    Published online Jan 25, 2018

  • 10.7317/pk.2018.42.1.87
  • Received on Jul 25, 2017
  • Revised on Aug 19, 2017
  • Accepted on Aug 19, 2017

Correspondence to

  • Chang Keun Kim
  • School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Heuksuk-dong, Dongjak-Gu, Seoul, 06974, Korea

  • E-mail: ckkim@cau.ac.kr